4Based on petroleum product supplied. For petroleum, product supplied is used as an approximation ofpetroleum consumption. See Note 1, "Petroleum Products Supplied and Petroleum Consumption," at endof Section 5.

12Total losses are calculated as the primary energy consumed by the electric power sector minus theenergy content of electricity retail sales. Total losses are allocated to the end-use sectors in proportion toeach sector's share of total electricity retail sales. See Note, "Electrical System Energy Losses," at end ofsection.

5Does not include biofuels that have been blended with petroleum-biofuels are included in "Biomass."

Notes: - The commercial sector includes commercial combined-heat-and-power (CHP) and commercialelectricity-only plants. See Note 2, "Classification of Power Plants Into Energy-Use Sectors," at end ofSection 8. - Totals may not equal sum of components due to independent rounding.